I’ve got an Aussie/hound dog cross, a JRT, and a Cocker Spaniel who love to sing. They usually do it when I leave to go walking with a friend. We can hear them start up when we get to the corner.
The other day, we were walking in the subdivision next door, about a half-mile away, and we could hear them from there! A friend who lives in the next block from my house called me to say she knew exactly when I left the house, because she heard the chorus.
I thought they howled only when I left them, but the other night I was in the house and they were on the back porch singing away!
They do a combination of long howls with some yipping, all seeming like they are trying to outdo each other. Three-part harmony!
And normally, they are very quiet dogs (yes, even they JRT - he rarely barks!).